linux-kernel - Re: Crash caused by "EDAC: Rip out the edac_subsys reference counting" (was Re: linux-next: Tree for Dec 8)

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Message-ID: <20151209160301.GB10518@pd.tnic>
Date:	Wed, 9 Dec 2015 17:03:02 +0100
From:	Borislav Petkov <bp@...e.de>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	linux-kernel@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, Scott Wood <scottwood@...escale.com>,
	Johannes Thumshirn <jthumshirn@...e.de>
Subject: Re: Crash caused by "EDAC: Rip out the edac_subsys reference
 counting" (was Re: linux-next: Tree for Dec 8)

On Wed, Dec 09, 2015 at 12:17:47PM +0100, Borislav Petkov wrote:
> On Wed, Dec 09, 2015 at 09:32:47PM +1100, Michael Ellerman wrote:
> > Presumably caused by the fact that edac_init() is subsys_initcall(), whereas
> > corenet_gen_publish_devices() is arch_initcall().
> 
> Thanks for the report!
> 
> Hmm, interesting, can you send .config please?
> 
> I need to fix this dependency properly - edac_core needs to have
> finished loaded *before* any other EDAC driver loads. Every other order
> is wrong.

Yeah, see Johannes' patch.

Btw, calling a driver's probe function from outside the driver is a new
low in driver design. Tztztz...

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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